This is a domestic issue. The lands in question have either been bought by Jews, or have been shown to be own by Jews, or the municipality has taken them over by eminent domain. The residents in question have been offered citizenship in Israel, with voting rights. They can topple the city government if they want, but they refuse to vote.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Jerusalem master plan: Expansion of Jewish enclaves across the city